* {
    margin: 0;
    padding: 0;
    border: 0;
}

body {
    padding-left: 10px;
    padding-top: 10px;
}

.btn {
    width: 200px;
    height: 40px;
    background-color: #efef00;
    cursor: pointer;
}

.textbox {
    width: 400px;
    height: 20px;
    border: 1px solid blue;
    outline: none;
}
